Which statements about earth’s core explain earth’s magnetic field? check all that apply. answers: the inner core is solid. the outer core is liquid and moving. earth’s core is composed of iron and nickel.

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.

Select the correct answer. what does the process of natural selection involve?

Why is the use of carbon-14 limited